Imagine you have a magic wand that can talk to stickers without touching them! The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers is like that wand. It uses invisible waves, like when you talk on the phone, to send messages between a reader and special stickers. These stickers can tell the reader what they are, like if it's a toy or a candy! This helps stores know what they have without having to count everything by hand, and it makes paying for things super fast!
The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers patent details a novel approach to data transfer, enabling secure and efficient communication between devices without physical contact. This patent addresses the limitations of traditional data exchange methods by utilizing electromagnetic fields to establish a robust communication channel between a read/write unit and various information carriers, such as RFID tags and smart cards. The key technical approach involves generating an electromagnetic field that energizes the information carriers, allowing data to be read or written wirelessly.
The business value of this technology lies in its ability to streamline processes, enhance security, and improve efficiency across various industries. In retail, it can facilitate faster checkout processes and inventory management. In transportation, it can enable contactless payments for tolls and public transit. In healthcare, it can improve patient identification and data access. The market opportunity for this technology is significant, with the growing demand for contactless solutions in various sectors.
By eliminating the need for physical connections, this innovation reduces wear and tear, improves reliability, and enhances security. The technology's potential applications extend beyond traditional payment systems, encompassing areas such as access control, supply chain management, and asset tracking. The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers patent represents a significant step forward in the evolution of data communication technology, offering a versatile and efficient solution for a wide range of applications.
The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers patent addresses a common problem: the inefficiency and limitations of traditional data exchange methods. These methods often require physical connections, which can be slow, cumbersome, and prone to errors. The invention offers a solution by enabling secure and efficient data transfer without physical contact.
Instead of relying on physical connections, this technology uses electromagnetic fields to establish a communication channel between a read/write unit and various information carriers, such as RFID tags and smart cards. Think of it like a wireless internet connection for physical objects. The read/write unit emits an electromagnetic field, which energizes the information carrier. The carrier then modulates the field to transmit data back to the read/write unit. This allows data to be read or written wirelessly.
This technology has significant market impact and opportunities. It can streamline processes in various industries, including retail, transportation, and healthcare. For example, in retail, it can facilitate faster checkout processes and inventory management. In transportation, it can enable contactless payments for tolls and public transit. In healthcare, it can improve patient identification and data access. The competitive advantages of this technology lie in its ability to provide secure and efficient data exchange without physical contact.
Future applications of this technology include access control, supply chain management, and asset tracking. The market adoption timeline is expected to be rapid, driven by the increasing demand for contactless solutions in various sectors. This technology presents significant investment implications, offering the potential for high ROI and long-term growth.
The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers patent outlines a system for contactless data exchange using electromagnetic fields. The technical architecture consists of a read/write unit, one or more information carriers (e.g., RFID tags, smart cards), and a communication protocol. The read/write unit generates an electromagnetic field, which energizes the information carrier. The carrier then modulates the field to transmit data back to the read/write unit.
The implementation details involve careful selection of the operating frequency, modulation scheme, and antenna design. The frequency typically falls within the radio frequency (RF) range, allowing for efficient energy transfer and data transmission. The modulation scheme can be amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM), depending on the desired data rate and noise immunity. The antenna design is crucial for maximizing the signal strength and minimizing interference.
Algorithms for data encoding and decoding are essential for reliable communication. Error correction codes, such as Reed-Solomon codes, can be used to detect and correct errors caused by noise or interference. Security protocols, such as encryption and authentication, are necessary to protect the data from unauthorized access.
Integration patterns involve connecting the read/write unit to a host system, such as a computer or a network. This allows the data to be processed and stored. Performance characteristics depend on the operating frequency, data rate, and distance between the read/write unit and the information carrier. Higher frequencies and data rates generally result in shorter communication distances. Code-level implications involve developing software drivers and libraries for controlling the read/write unit and processing the data. These drivers and libraries must be optimized for performance and security.
The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers patent presents a significant market opportunity in the rapidly growing field of contactless technology. The market opportunity size is substantial, driven by the increasing demand for contactless solutions in various industries, including retail, transportation, healthcare, and manufacturing.
The competitive advantages of this technology lie in its ability to provide secure and efficient data exchange without physical contact. This eliminates the need for manual processes, reduces the risk of errors, and enhances security. The technology can be applied to a wide range of applications, including contactless payments, access control, inventory management, and asset tracking.
The revenue potential is significant, driven by the adoption of this technology in various industries. Businesses can generate revenue by selling the hardware and software components of the system, as well as by providing services such as installation, maintenance, and support. Business models can include direct sales, licensing, and subscription services.
Strategic positioning involves targeting specific industries and applications where the technology can provide the greatest value. This includes focusing on markets where contactless solutions are in high demand, such as retail and transportation. ROI projections are favorable, driven by the potential for increased efficiency, reduced costs, and enhanced security. By investing in this technology, businesses can achieve a significant return on investment and gain a competitive edge.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A system for contactless exchange of information by wireless radiofrequency signal transmission between a read/write unit and an information carrier, comprising: a read/write unit comprising a first input/output circuit, an associated first coil means, and a first processing circuit; said first input/output circuit comprising a radiofrequency oscillator, a first gate with inputs for an output of said radiofrequency oscillator and a data signal, said first gate being gated by the data signal; said first coil means being operatively connected to an output of said first gate for taking a radiofrequency signal; an information carrier comprising a second input/output circuit, an associated second coil means, and a second processing circuit; said first and second coil means being inductively coupled to each other for bidirectional data transmission when the information carrier is positioned within transmission range of the read/write unit; said information carrier second coil means, responsive to a transmission of the radiofrequency signal by the read/write unit, being variably tuned, solely during said radiofrequency signal being transmitted, for a data signal transmission, and said first processing means dividing the data signal transmission into time slots, each of which comprises a trailing edge sync pulse and a single data bit which is a one bit or a zero bit, wherein said first input/output circuit of said read/write unit further comprises a rectification circuit for rectifying an input signal; a detector having two sample and hold circuits, connected in parallel, said detector being operatively connected to said rectification circuit for receiving and applying the rectified input signal in parallel to said sample and hold circuits, and operatively connected to receive first and second sampling pulses, from said first processing circuit, for sampling successively in time the input signal; and an analog-to-digital converter operatively connected to receive output signals of said two sample and hold circuits.
2. A system for contactless exchange of information by wireless radiofrequency signal transmission between a read/write unit and an information carrier, comprising: a read/write unit comprising a first input/output circuit, an associated first coil means, and a first processing circuit; said first input/output circuit comprising a radiofrequency oscillator, a first gate with inputs for an output of said radiofrequency oscillator and a data signal, said first gate being gated by the data signal; said first coil means being operatively connected to an output of said first gate for taking a radiofrequency signal; an information carrier comprising a second input/output circuit, an associated second coil means, and a second processing circuit; said first and second coil means being inductively coupled to each other for bidirectional data transmission when the information carrier is positioned within transmission range of the read/write unit; said information carrier second coil means, responsive to a transmission of the radiofrequency signal by the read/write unit, being variably tuned, solely during said radiofrequency signal being transmitted, for a data signal transmission, and said first processing means dividing the data signal transmission into time slots, each of which comprises a trailing edge sync pulse and a single data bit which is a one bit or a zero bit, wherein said first input/output circuit of said read/write unit further comprises a rectification circuit for rectifying an input signal; a detector having two sample and hold circuits, connected in parallel, said detector being operatively connected to said rectification circuit for receiving and applying the rectified input signal in parallel to said sample and hold circuits, and operatively connected to receive first and second sampling pulses, from said first processing circuit, for sampling successively in time the input signal; and an analog-to-digital converter operatively connected to receive output signals of said two sample and hold circuits, and wherein said first and second sampling pulses have an intersampling time of approximately 20 microseconds.
This invention relates to a system for wireless, contactless information exchange using radiofrequency (RF) signals between a read/write unit and an information carrier. The system addresses the challenge of reliable bidirectional data transmission in near-field communication (NFC) or RFID applications, where signal integrity and synchronization are critical. The read/write unit includes an input/output circuit with an RF oscillator, a gated modulator, and a coil for transmitting RF signals. The information carrier, positioned within transmission range, contains a similar coil and processing circuitry. The carrier's coil is variably tuned during RF transmission to enable data modulation. The read/write unit divides data into time slots, each containing a sync pulse and a single data bit (1 or 0). The system further includes a rectification circuit and a detector with parallel sample-and-hold circuits to process incoming signals. Sampling pulses, spaced approximately 20 microseconds apart, ensure accurate signal detection. The analog-to-digital converter converts the sampled signals for digital processing. This design enables efficient, synchronized bidirectional communication while minimizing interference and ensuring data integrity.
3. A system for contactless exchange of information by wireless radiofrequency signal transmission between a read/write unit and an information carrier, comprising: a read/write unit comprising a first input/output circuit, an associated first coil means, and a first processing circuit; said first input/output circuit comprising a radiofrequency oscillator, a first gate with inputs for an output of said radiofrequency oscillator and a data signal, said first gate being gated by the data signal; said first coil means being operatively connected to an output of said first gate for taking a radiofrequency signal; an information carrier comprising a second input/output circuit, an associated second coil means, and a second processing circuit; said first and second coil means being inductively coupled to each other for bidirectional data transmission when the information carrier is positioned within transmission range of the read/write unit; said information carrier second coil means, responsive to a transmission of the radiofrequency signal by the read/write unit, being variably tuned, solely during said radiofrequency signal being transmitted, for a data signal transmission, and said first processing means dividing the data signal transmission into time slots, each of which comprises a trailing edge sync pulse and a single data bit which is a one bit or a zero bit, wherein said first input/output circuit of the read/write unit further comprises a rectification circuit for rectifying an input signal; a detector having a single sample and hold circuit, said detector being operatively connected to said rectification circuit for receiving and applying the rectified input signal to said single sample and hold circuit, and operatively connected to receive a sampling pulse, from said first processing circuit, for sampling successively in time the input signal; and an analog-to-digital converter operatively connected to receive an output signal of said single sample and hold circuit; and wherein said analog-to-digital converter comprises an input differential amplifier and a second gate, said second gate comprising a first input connected to an output of said input differential amplifier and a second input operatively connected to said first processing circuit for receiving a converter sampling pulse.
This invention relates to a system for contactless information exchange using wireless radiofrequency (RF) signals between a read/write unit and an information carrier. The system enables bidirectional data transmission through inductive coupling between the units when the carrier is within transmission range. The read/write unit includes an input/output circuit with an RF oscillator, a gate modulated by a data signal, and a coil for transmitting RF signals. The information carrier has a similar coil and input/output circuit, with its coil variably tuned during RF transmission to facilitate data exchange. The read/write unit processes data in time slots, each containing a sync pulse and a single data bit (1 or 0). The input/output circuit of the read/write unit also includes a rectification circuit, a detector with a single sample-and-hold circuit for sampling the input signal, and an analog-to-digital converter. The converter uses a differential amplifier and a gate controlled by a sampling pulse from the processing circuit to digitize the signal. This system allows efficient, bidirectional wireless communication between the units without physical contact.
Complete technical specification and implementation details from the patent document.
DETAILED DESCRIPTION OF THE INVENTION
(0-5s) Hook: Tired of swiping? What if paying was as easy as waving?
(5-20s) Problem: Traditional payments are slow and require physical contact. Lines are long, and it's easy to lose your card.
(20-50s) Solution: The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers uses electromagnetic fields to transfer data instantly! Wave your phone, and you're done! It's secure, fast, and convenient.
(50-60s) Call to Action: Learn more about the future of contactless payments at patentable.app!
(0-3s) Hook 1: Tired of slow transactions? Hook 2: Ever wish your card could talk to the reader? Hook 3: What if data transfer was instant and touch-free?
(3-15s) PROBLEM: Traditional data transfer is slow, clunky, and can be insecure.
(15-45s) SOLUTION: The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers uses electromagnetic fields to exchange data instantly! Think waving your phone to pay, but for everything!
(45-60s) CTA: Learn more about this revolutionary patent and the future of data exchange at patentable.app!
(0-5s) Hook 1: The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers: changing how we exchange data forever! Hook 2: Unlock the potential of touch-free data transfer!
(5-20s) CONTEXT: We're moving towards a world where everything is connected, and data needs to flow seamlessly.
(20-60s) INNOVATION: This patent uses electromagnetic fields to create a secure connection for instant data transfer. It's like magic, but it's science!
(60-80s) IMPACT: Faster payments, easier access control, and more efficient data management across industries.
(80-90s) CLOSING: The Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers is the foundation for the future of contactless technology. Learn more at patentable.app!
(0-2s) VISUAL HOOK 1: Quick shot of a phone being waved to pay for something. VISUAL HOOK 2: Close up of an RFID tag being scanned.
(2-15s) PROBLEM: Traditional data transfer methods are slow and inconvenient.
(15-35s) SOLUTION: This patent enables instant data exchange using electromagnetic fields. Watch as data is transferred seamlessly! (Visual demonstration).
(35-45s) CTA: Want to know more? Link in bio for the full details on the Method and System for Contactless Exchange of Data Between a Read/write Unit and One or More Information Carriers!
Contactless data exchange illustration
System architecture diagram
Abstract visualization of contactless data exchange
Comparison chart of data exchange methods
Social media card for contactless data exchange
Cooperative Patent Classification codes for this invention.
Unknown
January 11, 2000
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